Strap fastening device



March 15, 1960 M. J. MCANENY STRAP FASTENING DEVICE 5 Sheets-Sheet 1Filed March 19, 1958 INVENTOR MICHAEL J. McANEN Y BY ANN L. MCANENYADMINISTRATRIX 5 Sheets-Sheet 2 Filed March 19, 1958 ..RV| Y Q fix 2 NMB. V C A Q Ymm 21B .S 8 L L m. m M W ni v W A n m 4 .LEFIHHHIIH M m f 0X 3 .1 0 M w B a w I 4 P n v I w 8 L 2 2 8 n a ATTORNEYS March 15, 1960Filed March 19, 1958 M. J. M ANENY STRAP FASTENING DEVICE 5 Sheets-Sheet3 INVENTOR MICHAEL J. 'MCANENY BY ANN L. MCANENY ADMINISTRATRIX BY 44wfAM 4M4 A ATTORNEYS March 15, 1960 M. J. M ANENY 2,923,434

STRAP FASTENING DEVICE Filed March 19, 1958 5 Sheets-Sheet 4 INVENTORMICHAEL J. McANE NY BY ANN L. MCANENY ADMINISTRATRIX ATTORNEYJ March1960 M. J. M ANENY 2,928,434

STRAP FASTENING DEVICE Filed March 19, 1958 5 Sheets-Sheet 5 lhl PINK142 I32 as INVENTOR I36 MICHAEL J. McANENY av ANN McANENY ADMINISTRATRIXBY //w 7T AW amwdgzzz ATTORNEYS STRAP FASTENING DEVICE Michael J.McAneny, deceased, late of Hillsboro, N. Mex., by Ann L. McAneny,administratrix, New Buffalo, Mich, assignor to Lewis M. Schott,Plandorne, N.Y.

Application March 19, 1958, Serial No. 722,486

3 Claims. (Cl. Mil-93.4)

This invention relates to improvements in a strap fastening tool ordevice for banding or strapping bundles, packages and assemblies ofdiverse shapes with tensioned metal straps and cooperating fastenings.More particularly, it relates to improvements in strap tensioning andfastening tools of the type described and claimed in the copendingapplication for Strap Fastening Device, Serial No. 690,598, filedOctober 14, 1957, now abandoned.

One of the objects of the invention is the provision of a tool ormachine which, in a manual operation thereof, tensions or tightens thestrap about the material or package to be bound, severs the strap to therequired length, and forms and associates an untensioned end portion ofthe strap in a portion of a cooperating buckle.

A further object of the invention is the provision of a device sodesigned and constructed as to be more effectively employed inefficiently banding pipes, pipe connections and all types and shapes ofassemblies, bundles, bales or packages having curved or straightsurfaces.

Another object of the invention is the provision of a tool having anadjustable head constructed for cooperation with straps and buckles ofdifferent widths and thickness and provided with improved means forholding the strap tensioned adjacent a free end thereof so as to providefor forming and sealing an untensioned free end of the strap inanchoring engagement with acooperating buckle.

Another object of the invention is the provision of a strap fasteningdevice which can be quickly brought into and out of engagement with abuckle and strap to be fastened, for sequentially tensioning, cutting,forming and sealing the strap into end engagement with the buckle byunitary means controlled by a single operating lever.

Other objects and advantages of the invention will become apparent fromthe following specification and by reference to the accompanying drawsforming a part thereof and in which:

Fig. 1 is a side elevation of a tool constructed in accordance with theteachings of this invention;

Fig. 2 is a top plan view of the tool;

Fig. 3 is a fragmentary, longitudinal sectional view through the tool ofFig. 1 showing the tool in strap tensioning position;

Fig. 4 is a section similar to Fig. 3 with the tool approaching thestrap cutting position;

Fig. 5 is a section similar to Fig. 3 with the tool in ice,

Fig. 11 is a view similar to Fig. showing the size adjusting means forthe tool; and

Fig. 12 is a perspective view of one of the cam elements shown in Figs.10 and 11.

Having reference to the drawing, wherein corresponding referencenumerals represent corresponding parts throughout the several figures,the banding tool comprises a substantially rectangular frame composed ofspaced parallel longitudinal side rail portions 10, 10', a reartransverse tie and base portion 12 disposed between the rail portionsand fixed thereto as by bolts 14 and pins 16 at the rear end of therails and provided with a rearwardly extending handle 18-formanipulating the tool. The lower end of the base portion 12 is suitablyshaped to provide a rear foot support and a guide slot 20 openinglaterally for receiving the strap.

The rail portions are each provided with flared front end extensions 22and 22' at the forward end for mountnig therebetween laterallyadjustable buckle engaging means 24. Also attached to the flaredextension is an adjustable head member 26, presently to be described,

embodying manually operable'laterally adjustable strap receiving andengaging means for straps of different widths, and means for holding atensioned strap passing through the head and around an object to bebanded.

Slidably disposed for longitudinal reciprocating'movement on the siderail portions 10, 10', between the rear transverse member 12 and thebuckle engaging means 24, is a strap receiving mechanism which serves togrip and pull or tighten a strap 28 passing through a buckle 30, Fig. 9,and the tool and about the body to be banded, to cut the strap adjacentand rearwardly of the buckle, to form or shape the resulting rearwardextension of the strap beyond the buckle, to fold it over and into thebuckle, and finally to iron or seal the strap end and the buckle into aneffective and strong connection.

This mechanism includes a slide 32 grooved longitudinally on itsopposite sides for guiding engagement with the side rails 10, 10' of theframe. The slide is preferably an integral casting constructed toprovide a transverse rear wall portion 34 having spaced upwardly andrearwardly extending lugs 36, spaced forwardly extending parallel sidewall portions 38, 38', and a horizontally disposed bottom or ledgeportion 40 providing a strap rest, cutter block and anvil. Slide 32 alsoincludes a laterally opening horizontal slot 42 in substantial alignmentwith slot 20, and above the ledge portion 40 for passage of the strapinto and out of overlying engage ment with the ledge cutter block andanvil. The slots 20 and 42 permit lateral engagement, and disengagementof the tool with the strap 28. At its front end the ledge has arelatively pointed nose 44 and immediately to the rear and on the topside thereof has a forwardly-sloping surface 46 terminating at its frontend in a semicircular depression 48.

Directly to the rear of this sloping surface 46 there is provided atransverse recess 50 defining with the sloping surface a transversecutting edge 52. All of these parts of the ledge portion functioncooperatively during the forming and cutting operations on the strap inconjunction with a manipulatable combination tool hereinafter described.

Surmounting the transverse rear Wall portion 34 of the slide andpivotally mounted on stud shaft 54 having its ends fastened in aperturesin lugs 36, is a latchmember 56.

The latch 56 consists of a single element with a bifurcated forwardlyextending arm 58 defining a slot 60 for free movement therein of bar-62,between the upper and lower arms 64 and 66 respectively. Arm 64 isprovided in its forward end with a recess 68 for receiving bar 62 in oneposition of the latch and a cam 70 on Patented Mar. 1 5, 1960 levermounting lugs. V

connected between arms 104 in position to'cooperate -with latchimembers56 hereinbefore described. i

a a s r its top side adapted to'be engaged by projection 72 on lever 74in certain movements of the lever.

' The latch is provided with a downward extending arm Z6 having itslower end provided with notches 7 8 and fit for cooperative engagementwith arm 826i a leaf spring 54 disposed over the rear wall portion 34.The free arm of the spring is adapted to engage in c eer the other of Vthe notches in the controlled positioning of the latch cooperates withparts ofthe ledge portion in gripping,

cu.tting,;for mi ng and seahng the strap to the buckle. At its lower.rear end this rock member 88 is provided with abore into which ismounted for limited pivotal movement a gripping .pawl 90 having a flatfoot portion 92. When member 88 is rocked counterclockwise pawl 90serves as a gripping pawl by gripping the top side of the strap andclamping it firmly against the top of the ledge portion 40. Spacedforwardly of the pawl 99 and extending transversely of the lower side ofthe rock memher is a cutting edge 94, and adjacent the cutting edgesembly being retained in the 'recess by a screw threaded guide 118. As.more clearly shown in Figs. 3 and 4 the extended end of plunger 114, onthe rearward travel of the slide block 32, passes through a bore 120 inlatch member 56 so that'the head of 'the plunger strikes the back faceof element 34 of slide block 32. This resilient stop alsotends to urgethe slide forwardly from a retracted 94, forwardly thereof, there is atransverse groove or recess 96 for receiving'the out or sheared end ofthe strap in the manner shown in Fig. 3. The cutting edge 94 cooperateswith cutting part 52 on the ledge portion to cut the strap 28 in acontrolled clockwise rocking movement of the combination tool or rockmember. Groove 96 together with a boss 98 transversely of the rockmember which cooperates with the depression 44 in the slide block 32define a U-shaped die, to form and upwardly bend the severed endportions of the strap in the manner shown in Fig. 5.

At its lower front or corner end the rock member 83 has a substantiallyU-shaped transverse die' portion 169 which.

functions to press and seal the upwardly bent end of the strapdownwardly in arched-like fashion against and into coupling engagementwith the buckle, as seen in Fig. 6.

The upper part of this second die portion terminates in a forwardlyfacing projection 162 which, in a forward sliding movement of the slide,functions to contact the upwardly bent tip end of thestrap and, inforward movement of the slide and rock member, impart a slight lift tothe strap end in order-toinsur'e positive subsequent engagement of thedie portion 1% with the strap and to force it'oversand into couplingengagement with the buckle. The rock member is also provided with twospaced position and thereby facilitate rapid operation of the tool.

The slide may if desired be held at predetermined points of its travelalong side rails 19, 10 by spaced detents 122 provided in the oppositerails and cooperating spring pressed ball latches 124 in opposite sidesof the slide, the balls engaging in the detents at the predeterminedpositions until released therefrom by movement of lever 74.

At their forward ends, rails 10, 16 are each provided with opposedinwardly directed flanges or shoulders 126 serving as stops limitingforward movement of slide 32 i r The extended end portions of shaft 134are threaded and each end receives a knurled nut 138, one face of whichengages the outermost face of its cooperating slider 132.

The other faces of slides 132 engage one of a plurality of spacer keys140.

The spacer keys 140 are pivotally mounted on the head piece 26 by studshaft 142carried by plates 136 and 136'. As shown in, for example, Figs.2 and 11, three key members 146 are positioned .between inner stopelement144 of shaft 134 and the inner faces of each slider, 132, thusthe-rear buckle supports are in their most extended position to receivethe largest buckle.

For effecting lateral adjustment of member 24 to accommodate buckles ofdifferent size, one or more of the keys 140 are pivoted upwardly aboutstud shaft 142 so 7 whereby nuts 133 may be screwed toward one another.

parallel upstanding lever arms 104 which serve also as The transversestop bar 62 is The slide and-rock member mechanism is arranged toperform the operation of tightening the strap about the body to bebound: and through 'theibuckie when moved in one direction, whiletheremaining operations are performed when the mechanism is moved -inthe opposite direction. The tighteningcutting, forming and sealingoperations b eing cooperate steps in producing the new andimprovedstrapping and sealing method; Slide 32 its front end at 106 between thepair of'upstanding. arms 104 rising from the rock member 83, and a pairof toggle links or levers 108 pivotallyconnected at their forrwardendstoan intermediate portion of lever 74 -by pivot 110 and pivotallyconnected at their other ends to upstanding lug'11-2'on the tie member12. g g 7 Between member 12 and slide 32 is a resilient stop forcushioning rearward movement of ,the' slide, such stop preferablyconsisting of a plunger 114 backed by spring [,116. invit sss m niasmbst ,l it e p i s a d p uns fls 30 as shown in Fig. 9. a Each slider132 vis The inward movement of nuts 138 bring about corrcsprondinginward movementof sliders 132 which, inturn, move rear buckle supportelements 24/ inwardly.

Members 24 have at their lower ends depending hooklike buckle rests114 6fordetachable gripping engagement with the rear ends148 of the sideflanges of the buckle provided with a downwardly extending pm 150 forcam track engagement, with a cooperatingcam track 152' on cam element15-1 to be more fully described'hereiriaften' l i The lower extensions156 of rails 10 and 10' are contoured on theiriuppersurfaces acres toprovide a curved seating surface, guideflange andsupport for swingingand pivotal'movement of the adjustable strap engaging head i 26. ,Eachofthe ispac'ed parallel side members 136 and 136 is contoured at a lowerrear edge'portion 160 thereof to cooperate with the curved seating andguiding surfaces of the rail extensionsi156. Paired links 162 and 164are[pivotally connected ,at', 166 and 168- to a side member of itendinginto [an aperture provided ln extensions 156,

the frame and provided with ja trunnion 170 and 172 exserv ng to provideverticalswinging movement of the heads The pivotal connections 166 and168 for links 162 and 164 are providediwith lock nuts 174 sothat'theihe'ad may be in an intermediate position tighteninggthe nuts.The head 26 is conveniently held in a position for use of the tool onflat surfaces by latch 1 76 'pivotally mounted on the extension 156 ofrail 10'}: Latch 176 includes an operating boss 17 andakeeper element180 ,which engages offset 182' on the upper surface of link 164 when thehead is pivoted to bring about the mating of surfaces 158 and 160. Fromthis position the head may be swung downwardly for strap binding andfastening operations in connection with work having curved or otherirregular surfaces. The side members of the head frame constitute inreality movable rail extensions at the front of the tool.

Disposed in parallel relation to the rear buckle engaging members 126and mounted for movement toward and away from each other on transverseguiding support 130, fixed at its ends in side frames 136 and 136', arestrap engaging jaw members 182. These jaws, at the bottom thereof, haveinwardly facing horizontal slots and opposed projections 184 forreleasable supporting engagement beneath the marginal side edges of thestrap, as illustrated in Figs. 3 through 6. Jaw members 182 are alsoprovided with projections 185 positioned forwardly of strap supportingprojections 184. Projections 185 engage a portion 149 of the front coverof the buckle 30 as shown in Figs. 3 through 6. Each jaw member isprovided with a side flange 186 which rotatably engages cylindrical earn154 and is held against axial displacement relative thereto byengagement of the flange 186 in a groove 188 between a facial portion ofthe cam and a spaced annular flange thereon. A splined axle 190 havingits ends journaled in the side frames 136 and 136 serves jointly withthe support 180 to guide the jaws 182 and cams 154 toward and away fromeach other. Spiral cam track 152 receives in a portion of its peripheryone of the pins 150. A suitable knob or handle 192 is fixed to an endextension of axle 190 by which the axle may be turned to rotate cams 154splined thereon. By this rotation of the axle 190, the cams 154 and thejaw members 182 are caused to slide toward and away from each other ontheir supports to grip and release the strap and buckle, the pins 150effecting such movement by engagement in the cam tracks 152.

Each of the strap engaging jaws is provided with means for effectuallyclamping the strap 28 to the tool immediately forward of the buckleduring the operation of tensioning the strap about a body andsubsequently sealing it to the buckle. This clamping action takes placesimultaneously with that of the movement of the cams 154 and the jaws182 to the strap engaging position.

The clamping is accomplished by generally vertically sliding dogs 192. Adog 192 is mounted for sliding movement by flanges 194 and 196 whichengage corresponding recesses in each jaw member 182 to receive it sothat the dog is in the operating path of the associated cam and in aplane intersecting the companion supporting jaw extension 184,. as shownin Figs. 3 and 10. The lower end of each dog 192 is provided with apivot foot 208 having gripping teeth 282 for engagement with the strapoverlying jaw lug 184. l I

The dogs 192 fit loosely in the slots in sliders 132 an a pair ofsprings 2416 and 208 urge each dog upwardly and forwardly so thattoothed foot 200 is normally in a strap engaging and holding positionwhen the dogs are cammed downwardly as to be more fully describedhereinafter.

Referring specifically to Fig. 3, the dogs 192 are shown in the strapholding position and as shown, strap 28 may be urged by action of slideblock 32 toward the rear support 12. However, the strap is restrainedfrom moving in the opposite direction.

Each cam 154 controls movement of its associated strap gripping jaw intoand out of gripping position with the strap, and movement of itsassociated dog into and out of gripping position with the strap. Thearrangement is such that when the splined axle 190 is rotatedcounterclockwise, the jaws are released from their gripping position,and when the axle is rotated clockwise the jaws are caused to engage thestrap.

The cam tracks 210 are of such disposition and length as to providelateral releasing movement and strap ens 6 gaging movement of thegripping jaws for all adjusted positions of the buckle engaging means.The respective cams 212 on each dog are contoured to be out ofengagement with tracks 210 during the movement of the jaws into and outof strap clamping position, so that the dogs are maintained during suchtravel out of gripping contact with the strap. Further, the peripheralcam surface arrangements are such that the strap is gripped bythe dogssimultaneously with the movement of the gripping jaws into strapengagement. Conversely, release of the dogs from their strap grippingengagement is accomplished simultaneously with the release of thegripping jaws from strap engagement. a

The strap gripping jaws together with the dogs constitute a vise forgripping the strap and retaining the tool thereon during tensioning ofthe strap and subsequent operation to be performed thereon. It is to benoted that the overlying portion ofthe strap extending rearwardlythrough the buckle from the dog gripping point is untensioned when cutfor folding over and fastening to Y thebuckle. This obviates thenecessity of bending the strap at a tensioned portion thereof.

The operation of the structure hereinbefore described may be brieflystated as follows: A metal strap or band extending through the bucklewith its end attached to the buckle as in Fig. 3 is placed around theobjects to be bound with the opposite end of the strap extending throughthe buckle in a reverse direction. The tool, with the cam operating axlerotated in a counterclockwise manner in which the strap engaging jawsare open, is engaged laterally with the strap and forcedforwardly untilthe buckle rests engage the side flange portions of the buckle. In thisposition, the cam operating axle is turned clockwise shifting the strapgripping jaws from their full open position to a closed strap engagingposition. Simultaneously with engagement of the strap by the jaws thepawls 200 are urged into engagement with the strap, the dog lever armshaving contacted the high portion 210' of the cams. This causes the toolto be retained on the strap with the strap engaged between the grippingjaws against withdrawal from the buckle but permits a drawing movementof the strap through the buckle'by the tool.

Following engagement of the tool with the strap and buckle, the handle74 is swung to cause pawl 90 of rocker 88 to be elevated above the strapand the slide to slide forwardly a distance determined by the movementof the handle as shown in Fig. 4. Swinging of the handle in a reversedirection causes pawl 90 to grip the strap against '-the slide which isforced rearwardly to tension the strap pin 62 limits forward rockingmovement of the rocker 88.

Figs. 3 and 4 show the latch member 56in the forward index position. Theother position of latch member 56 is i1- lustrated in Figs. 5 and 6. Thelatch member 56 is moved from the rearward position (Figs. 5 and 6) tothe forward position (Figs. 3 and 4) by moving the handle 74 'allof theway forward which causes slider 32 to move to l of the'slider 32. As thepin 114 is urged inwardly by the its most rearward position. Therearward movement is cushioned by spring urged pin 114 engaging member34 is desired, the slide is caused to be moved to a forward positionwherein the latch 56 istripped by the camming action between projection72 on lever 74, and the cam 70 1 strap and bends its end upwardly bythecooperating cutting and bending die portions thereof and the anvil onthe slide as shown in Fig. 5. After cutting and forming the strap, slide32 together with'its rocker member '88, is moved by the handlerearwardly until the forward end of the rocker is dispo'sedrearwardlyofthe bend end of the strap, after which the slide is again advanced tocause the die member of the front end of the rocker to initiate anupward folding movement of the strap end portionto fold the strapendover the upper side of the buc'kle and force the end thereof under thearch of the buckle as shown in Fig. 6. In this movement the untensionedsevered end of the strap is in effect ben'taround the buckle and ironedinto substantially fiat engagement with operating axle190 is "turnedcounterclockwise and the machineis released from strap and buckleengagement.

' In a normal strapping operation on a substantially fiat surface, theforward rail extensions or head occupies a substantially horizontal:pos'itio-nas shown in Figs. 3-6.

'In a hose clamping operation or in strapping a cylindrical or otherobject of irregular contour, the headis swung f mana downwardly asdesired to enable the tool to substantialrelative to the body of thetool to point A substantially at i the forward tip of the front buckleholding means of sliders 182. By selecting point A as the pivot pointthe relative spacing between the front and rear buckle holding means ismaintained the same regardless of the position of the head relative tothe body of the tool. The arrangement is such that strapping ismade'possible for much smaller cylindrical and other shaped obpects thancould heretoforebe strapped. The pivoted head arrangement results inauniversal tool with a much larger strap .ping range, and the'entirestrapping operation of ten- 'sioning, cutting, forming'and scaling ismade possible in a singletool; V r

The invention has been described in connection with a preferredembodiment, thereof but the words; used are those of description and'not of limitation, and modificationsand changes within .the'purview ofthe appended" claims are contemplated without departing from the truescope and spiritgof'the invention.

This application isa continuation-impart of applica-' t-ioh Serial No.690,598; filed October 14,1957. What is claimed is: a

- l. A kstrap fastening tool comprising a frame having pivoting the,frame extension to said frame, saidpivoting the frar'rilexfnfsioif'tosaid frame, said pivoting means comprising a pair .of spa'ced .swingablelink connections between th emain frame and .the frame extension on eachside of the tool 'withthes'paced links of each 'pair having spacedpivotal connections at oneend with the tool frame and atthe other'nd'withthe frame extension to provide swinging movement of the frameextension with respect to the tool frame 'inangular adjustment of theframe extension withrespect to the tool frame.

2. A strap fastening tobl-comprising aframe, bucklereceiving membersmounted on said frame for lateral adjustmenttoward and from each otherand. having rests at ments 'pivoted'on said companionstrap-engagingmembers for releasably-clampin'g 'the strap thereto, and means foractuating said strapengaging members intoand out of their strap-engagingpositions and for controlling the displacement of their grippingelements, into and out of their clamping positions, said means includingspirallygrooved cams operatively connected to said members to travellaterally therewith and free to turn relatively theretc-{coupling pinsengaging the grooves of the companion cams, an operating handle jointlyconnected to said cams for turning them in one :direction or the otherto corresponding displace the strap-engaging members into and out oftheir operative position, said cams having portions thereon in governingrelation with said grippng elements a for causing their simultaneousdisplacement into and out of clamping engagement with the strap, meanspivoting the frame extension to said frame, said pivotingmeanscomprising a pair'of spaced swingable link connections between the saidframe and the frame extension on each side of the tool with thespacedlinks of each pair having spaced pivotal connections at one end with thesaid frame and at the other end with the frame extension to provideswinging movement of the frame extension with respect to the frame inangular adjustment-of the frame extension with respect to the frame.

3. in combination, a strap fastening tool having a main frame with-meansthereon transversely adjustable with re- 1 s'pect to the frame fordetachably engaging and holding a buckle and a'manually operable strapgripping, tensioning, cutting, forming,and sealing means supported forsliding movement on the main frame .rearwardly of the buckle engagingrn'eansto draw a strap through the buckle,

i cut and form its end and seal it intothe buckle, a frame extension,means on the frame extension transversely adjustable with respectthereto'for detachably engaging and holding adjacent said buckleengaging means a strap passing through the buckle, and a pa'ir of spacedswingable link connections' between the main frame and the means thereonto detachably receive a buckle to which we end of abandedstrap isconnected, said .bucklefreceiving means including laterally adjustablemembers frame extension on each side of the tool with the spaced linksof each pair having spaced "pivotal ,connectionsat oneend with the mainfraine and atthe other end with having :restS thereon for supporting themarginallside edges of the buckle, a frame extension forwardly o-fsaidbuckle-receiving means, laterally displaceable-means mounted on saidframe extension adjacent, said bucklereeeiving means adapted to receiveand clamp-thereto;

the other end of the strap to be fastened to the buckle, and meansmounted on said :frame andoperatively connected to said strap-receivingmeans for actuating the same toward and from each other into and out of:en-

gagement with tlie marginal side edges of the strap, means the frameextension to provide swinging movement of the 7 UNITED STATES PATENTOFFICE CERTIFICATE OF CORRECTION Patent No, 2 928 434 I March 15 1960Michael J, McAneny It is hereby certified that error appears inthe-printed specification of the above numbered patent requiringcorrection and that the said Letters Patent should read as correctedbelow.

Column 8 lines 1 and 2 after "frame strike out "said pivoting the frameextension to said frame "3 line l6, for "110' read me on line 33 for"grippng" read gripping same column 8 line 63 for "adjusment" readadjustment Signed and sealed this 23rd day of August 1960.

( SEAL) Attest:

KARL H. AXLINE ROBERT C. WATSON Attesting Officer Commissioner ofPatents

